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Coonect to Exchange '03 server while not on Domain but on network.

Posted on 2007-03-17
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Last Modified: 2010-03-06
May be a silly question. I have always set up connection to exchange on workstations connected to a DC.  Is it possible to connect to an Exchange server using Outlook client (and not resorting to RPC over HTTPS or VPN). In other words, machine is not on a domain, but a workgroup . . . but is assigned IP from DHCP server (i.e on inside of network.  I want to connect in cached mode like I would in a normal server/client environment, but do it on machines that are not authenticated on the domain.

If it is possible, what are the ramifications? This would only be done in transition as we migrate some machines away from Novell to AD.

I know all abpout VPN connections and all about Ourlook RPC over HTTPS, also OWA. But these machines will be on the network, just not joined to the domain.  Is it possible. I have simply never considered doing it.  If so, will users have to re authenticate everytime they check mail? Or do I HAVE to join domain?
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Question by:Mixmangle
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7 Comments
 
LVL 104

Expert Comment

by:Sembee
ID: 18741552
As the name resolves it is perfectly possible to connect Outlook to Exchange when off the domain - that is how hosted Exchange providers work. However the user will have to authenticate when Outlook starts, because the user needs to authenticate against the domain.

Simon.
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Author Comment

by:Mixmangle
ID: 18741744
OK. Thanks. I figured it was possible. i've just never had to do it.

The users I am thinking of in particular, during this transition, currently log onto a Netware 6.5 server.  Is there any way their netware credentials can be passed to AD so they won't have to log in to Outlook? Again, without actually joining the Windows Domain?
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LVL 2

Author Comment

by:Mixmangle
ID: 18741759
I know I am asking questions that someone up the chain has probably already considered. But  The whole organization is going to Exchange, but I am in the IT department of a branch that really dislikes AD--and will no doubt want to stay off the domain as long as possible.  So I am just not sure what sort of Migration strategy is being considered. For all I know, it's covered. I just want to know, you know?
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Sembee earned 2000 total points
ID: 18741777
Exchange needs the user to authenticate against the domain. I doubt if you can reuse the netware credentials because Exchange uses AD.

Simon.
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LVL 2

Author Comment

by:Mixmangle
ID: 18741851
That's what I figured.  As long as the password is one time when opening and not nevery time connect, it's a livable situation I guess.  

I want to see full move to AD but I know others will less likely to adopt.

Thanks
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LVL 2

Author Comment

by:Mixmangle
ID: 18741857
Appreciate the fast answer
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LVL 104

Expert Comment

by:Sembee
ID: 18741906
The password is every time that Outlook starts - because it is authenticating against the domain. While there are various techniques for saving the password, it is not something I encourage and would cause problems if you are making your users change their password frequently.

Not having the machine in the domain should be kept for as shorter time as possible - as Outlook/Exchange is an AD application and relies on AD to provide the authentication.

Simon.
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